①Delivery status

Delivery status is the final plastic deformation or final heat treatment state of the delivered product. Generally, tubes delivered without heat treatment are called hot rolled or cold drawn (rolled) state or manufactured state; tubes delivered after heat treatment are called heat treated state, or normalized (normalized), quenched and tempered, solid solution, annealed according to the type of heat treatment. The delivery status should be indicated in the contract when place order.

②Delivery by actual weight or theoretical weight

Actual weight - when delivered, the weight of the product is delivered according to the weighing (over-pound) weight;

Theoretical weight - When delivered, the weight of the product is calculated according to the nominal size of the steel. The calculation formula is as follows (for those who require delivery by theoretical weight, it should be indicated in the contract):

Theoretical weight per meter of steel pipe (the density of steel is 7.85kg/dm3) calculation formula: W=0.02466*(D-S)*S

In the formula: W--the theoretical weight of the steel pipe per meter, kg/m; D--the nominal outer diameter of the steel pipe, mm; S--the nominal wall thickness of the steel pipe, mm.

Changsha Xiangjia Metal Materical Co., Ltd. specializing in the production and sales of carbon steel pipes, alloy pipes, stainless steel pipes, etc., welcome to call us for consultation.